16082505 has 12 divisors (see below), whose sum is σ = 27876420. Its totient is φ = 8577312.

The previous prime is 16082471. The next prime is 16082509. The reversal of 16082505 is 50528061.

16082505 is a `hidden beast` number, since 1 + 608 + 2 + 50 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11532816 + 4549689 = 3396^2 + 2133^2 .

It is not a de Polignac number, because 16082505 - 2⁷ = 16082377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16082509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178650 + ... + 178739.

It is an arithmetic number, because the mean of its divisors is an integer number (2323035).

Almost surely, 2^16082505 is an apocalyptic number.

16082505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16082505 is a deficient number, since it is larger than the sum of its proper divisors (11793915).

16082505 is a wasteful number, since it uses less digits than its factorization.

16082505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357400 (or 357397 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 16082505 is about 4010.2998640999. The cubic root of 16082505 is about 252.4165917365.

The spelling of 16082505 in words is "sixteen million, eighty-two thousand, five hundred five".